Description:
============
PHP-Nuke is a news automated system specially designed to be used in Intranets and Internet.
The Administrator has total control of his web site, registered users, and he will have in the hand
a powerful assembly of tools to maintain an active and 100% interactive web site using databases.
[http://www.phpnuke.org/]

Vulnerability:
==============

PHP Nuke 7.8 is prone to multiple SQL injection vulnerabilities.
These issues are due to a failure in the application to properly sanitize user-supplied input before using it in SQL queries.

So you can use UNION in a GET var. But because they use register_globals or impor_request_variables you can send
the malicous SQL-Code via POST so it is not checked if you insert an "union".

http://www.example.com/modules.php POST: name=' OR 1=1/*
will produce an error, neither
http://www.example.com/modules.php POST: name=' OR 1=2/*
will only tell you taht the requestet 'modul' is not active, so you can read out the admin password hahs via blind injections.

Additionaly there are a few SQL-Injections in the modules.
Here a few examples:

http://www.example.com/modules.php?name=News&file=article&sid=[SQL] - here the same as above, send this via POST to
bypass the 'union'-cover